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String functions

Function

decodeb64()

Short

Decodes a string with Base64

Syntax

DecodeB64(s : STRING) : STRING

Parameter

s : any string with characters from chr(32) to chr(127)

Return

Base64 decoding of s

See also:

encodeb64()

Description

The following procedure decodes a text file (handle t) that was encrypted by EncodeB64() before back to a binary file:

PROCEDURE ReadB64(binary_file : STRING; t : INTEGER)
VAR f : INTEGER
  IF f:=rewrite(binary_file) THEN
    WHILE NOT EOT(t) DO
      write(f,DecodeB64(readln(t)))
    END
    close(f)
  END
ENDPROC


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